论文部分内容阅读
通过田间试验,研究比较了小麦与蚕豆间作和小麦单作环境条件下,小麦根际和土体速效磷养分的动态变化,探讨了小麦单作和小麦与蚕豆间作对小麦根际磷养分的影响。结果表明,单作小麦和间作小麦根际速效磷含量在各生育期呈先升高后降低的变化趋势,土体速效磷含量单作小麦在灌浆期最高,间作小麦在抽穗期最高。小麦蚕豆间作提高了拔节至灌浆期小麦根际速效磷含量,显著降低了成熟期根际速效磷含量和土体磷含量。拔节期、抽穗期、灌浆期小麦根际速效磷含量分别提高了6.81%,8.71%,12.95%,成熟期根际速效磷含量降低了21.11%。
A field experiment was conducted to study the dynamic changes of available phosphorus in wheat rhizosphere and soil under wheat and faba bean intercropping and wheat single cropping environment. The effects of wheat single cropping and wheat intercropping with wheat on rhizosphere phosphorus . The results showed that the content of available phosphorus in rhizosphere of single cropping wheat and intercropping wheat firstly increased and then decreased, and the content of available phosphorus was the highest in filling stage and the highest in intercropping wheat at heading stage. Wheat faba bean intercropping increased available phosphorus in the rhizosphere of wheat at jointing to filling stage and significantly reduced available rhizosphere available phosphorus and soil phosphorus at maturity. The contents of available P in wheat rhizosphere increased by 6.81%, 8.71% and 12.95% at jointing, heading and filling stages, respectively, and decreased by 21.11% in mature rhizosphere.